Once a month
get new photos
and expert tips.

Environment
Environment Main Global Warming Natural Disasters Habitats FRESHWATER

Photo Gallery: Floods

PREVIOUS4 of 13NEXT


Summer thunderstorms, like this one roiling over Alarcon Terrace, can turn the Grand Canyon's normally dry streambeds into seething torrents up to 50 feet (15 meters) deep. Such flash floods can quickly materialize miles away from where rainfall occurred, taking canyon hikers by surprise. Photograph by David Edwards